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Thread: DIY Air Curtain

  1. #41
    Senior Member Rank = Jussai Tom Koi's Avatar
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    Quote Originally Posted by davethefish1 View Post
    good find that mate,
    i've been looking for another stockist as Queni sold out real quick

    big H's link for you john
    https://www.amazon.co.uk/dp/B086V2H5...v_ov_lig_dp_it

    Cheers Dave

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  3. #42
    Extreme Koi Member Rank = Supreme Champion john1's Avatar
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    Thanks for the links lads just doing my homework as not sure what way to go if any.

    Been thinking , maybe a curtain would look good over there ===== or there === .
    Good time of the year to mess around with it though.
    John

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  5. #43
    Senior Member Rank = Supreme Champion Ajm's Avatar
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    Quote Originally Posted by john1 View Post
    Thanks for the links lads just doing my homework as not sure what way to go if any.

    Been thinking , maybe a curtain would look good over there ===== or there === .
    Good time of the year to mess around with it though.
    I need to find some time to make the lift first then I want a full wall length one on the back side of the pond perfect

    Sent from my SM-G973F using Tapatalk
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    "we are water keepers first"

    Johnathan

  6. #44
    Senior Member Rank = Jussai Tom Koi's Avatar
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    Hi all, I've valves on my air pumps, but I'm worried that I may damage the pumps if I throttle the valves, is there an alternative like an air pressure relief valve??
    If anyone has a photo of such, that would be of great help to.

    Thanks

  7. #45
    Quote Originally Posted by Tom Koi View Post
    Hi all, I've valves on my air pumps, but I'm worried that I may damage the pumps if I throttle the valves, is there an alternative like an air pressure relief valve??
    If anyone has a photo of such, that would be of great help to.

    Thanks
    A simpler way would be to vent any excess air to atmosphere or to put it into a biological bay.

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  9. #46
    Senior Member Rank = Jussai Tom Koi's Avatar
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    Dave what size pump do you use for the curtain,?

    I expect my curtain will be 180cm's no bigger, so be putting air in from both ends, I think anyway, as I'm not sure if I only used one end that the air would get to the other end ?

    Thinking of using one of these Evolution Aqua Airtech 75 Air Pump,
    Last edited by Tom Koi; 26-11-2022 at 08:15 PM.

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  11. #47
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    Quote Originally Posted by Tom Koi View Post
    Dave what size pump do you use for the curtain,?

    I expect my curtain will be 180cm's no bigger, so be putting air in from both ends, I think anyway, as I'm not sure if I only used one end that the air would get to the other end ?

    Thinking of using one of these Evolution Aqua Airtech 75 Air Pump,
    i'm using a Jecod MA100 but thats feeding a 200mm air stone in the bio, and the rest is going to the curtain.
    so a 75lmp should be spot on mate

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  13. #48
    Quote Originally Posted by Tom Koi View Post
    Dave what size pump do you use for the curtain,?

    I expect my curtain will be 180cm's no bigger, so be putting air in from both ends, I think anyway, as I'm not sure if I only used one end that the air would get to the other end ?

    Thinking of using one of these Evolution Aqua Airtech 75 Air Pump,
    Tom my air curtain is 1800mm long and I am using a medo 45 it’s working very well mate

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  15. #49
    Senior Member Rank = Jussai Tom Koi's Avatar
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    Cheers Burty I've got pumps here that'll do it, but not sure how reliable they'll be over time.

  16. #50
    Member Rank = Nisai 118's Avatar
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    Guys - what seems to be the best position for a curtain - top, middle or bottom of your water column? Or is it simply placed within, based on aesthetics?

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  18. #51
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    Quote Originally Posted by 118 View Post
    Guys - what seems to be the best position for a curtain - top, middle or bottom of your water column? Or is it simply placed within, based on aesthetics?
    One of the reasons for having the curtain and to have it a couple of foot below the waterline, was to avoid the high pressure air from the bottom that could possibly be a cause of gas bubble disease.

  19. #52
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    Thanks for the reply - I've a 4ft deep pond and have a slight dead area and was wondering if i could move this on using a curtain instead of another central stone? No doubt when i switch off the middle bottom stone, this area will move somewhere else, so perhaps a trickle feed to both 'might' be a better solution however I'm now conscious of what has been written above..my pump is a Hailea v30.. thoughts?

  20. #53
    Senior Member Rank = Supreme Champion davethefish1's Avatar
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    Quote Originally Posted by 118 View Post
    Thanks for the reply - I've a 4ft deep pond and have a slight dead area and was wondering if i could move this on using a curtain instead of another central stone? No doubt when i switch off the middle bottom stone, this area will move somewhere else, so perhaps a trickle feed to both 'might' be a better solution however I'm now conscious of what has been written above..my pump is a Hailea v30.. thoughts?
    4ft deep i wouldn't worry,
    that would be for 6ft to 8ft deep ponds...

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  22. #54
    Just noticed this thread.
    I'm guessing the purpose of an air curtain is purely to counter measured or potential drops in O2 levels and would not be an aesthetic choice?
    I'm a koi keeping dinosaur, I know, but I try and avoid visible water disturbance in the pond to give the best possible view of the fish and "treat and condition" my water out of sight in the filter shed.
    Having said that, I'm absolutely confident that whatever DTF builds will be professionally done and will work flawlessly.
    My DIY ponds from 1988 until present day.
    All can be found here:
    https://www.ukzero.com/pond.htm

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  24. #55
    Extreme Koi Member Rank = Supreme Champion Frimley Koi keeper's Avatar
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    This looks very interesting and I think I might make one for my current pond build.

    Dave, the 2 ebay links don't work now, maybe as it was a year or more ago the seller or listing has gone or expired.

    Not has chance to watch the video yet but will try later.

    Nice work BTW
    ________________________________________________
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    All we ever got was cold,
    Get up, eat jelly, sandwich bars and barbed wire,
    Squash every week into a day.

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  26. #56
    Senior Member Rank = Supreme Champion davethefish1's Avatar
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    Quote Originally Posted by Ukzero View Post
    Just noticed this thread.
    I'm guessing the purpose of an air curtain is purely to counter measured or potential drops in O2 levels and would not be an aesthetic choice?
    I'm a koi keeping dinosaur, I know, but I try and avoid visible water disturbance in the pond to give the best possible view of the fish and "treat and condition" my water out of sight in the filter shed.
    Having said that, I'm absolutely confident that whatever DTF builds will be professionally done and will work flawlessly.
    thanks
    maybe not flawlessly but good enough lol

    i understand where you are coming from,
    a natural looking pond without any water surface disturbance looks great.

    from a growth point of view especially when heating a pond to 26C in summer,
    high oxygen levels become more difficult, so aeration helps maintain it
    Last edited by davethefish1; 25-06-2023 at 12:22 PM.

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  28. #57
    Senior Member Rank = Supreme Champion davethefish1's Avatar
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    Quote Originally Posted by Frimley Koi keeper View Post
    This looks very interesting and I think I might make one for my current pond build.

    Dave, the 2 ebay links don't work now, maybe as it was a year or more ago the seller or listing has gone or expired.

    Not has chance to watch the video yet but will try later.

    Nice work BTW
    thanks,
    the video has some updated links, so i've changed those over on this threads first post too

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  30. #58
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    Quote Originally Posted by davethefish1 View Post
    thanks,
    the video has some updated links, so i've changed those over on this threads first post too
    Thanks Dave, the eBay links were for plastic air line fittings, right? Elbows and Ts?

    Sorry it's this heat and late nights recently plus I'm getting on a bit now lol
    ________________________________________________
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    All we ever got was cold,
    Get up, eat jelly, sandwich bars and barbed wire,
    Squash every week into a day.

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  32. #59
    Senior Member Rank = Supreme Champion davethefish1's Avatar
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    Quote Originally Posted by Frimley Koi keeper View Post
    Thanks Dave, the eBay links were for plastic air line fittings, right? Elbows and Ts?

    Sorry it's this heat and late nights recently plus I'm getting on a bit now lol
    yes mate

    i used to love weather like this...
    melting like a flippin icecream now...

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  34. #60
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    Quote Originally Posted by davethefish1 View Post
    yes mate

    i used to love weather like this...
    melting like a flippin icecream now...
    I've never liked the hot weather
    ________________________________________________
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    All we ever got was cold,
    Get up, eat jelly, sandwich bars and barbed wire,
    Squash every week into a day.

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